高考英语满分是150分。这个分数是全国大多数省份的标准，英语是高考的重点科目之一，也是同学们日后工作和生活中必须掌握的一门语言，本文给大家整理了高中英语必背的知识点，希望对同学们的学习有帮助。

高三英语知识点总结

各种时态的被动语态

被动语态概述

被动语态的概念：它是动词的一种形式，表示主语与谓语之间的执行或被执行关系。主动语态表示主语是谓语动作的执行者，例如：They saw the

little boy crying by the river. 被动语态表示主语是谓语动作的承受者，例如：The little boy was seen

crying by the river.

被动语态的构成

被动语态的形式是由“助动词be+动词的过去分词”构成。助动词be随着主语的人称、数、时态等的不同而变化。几种常见时态的被动语态形式如下：

1. 一般现在时 am/is/are + 过去分词

例如：Rice is planted in the south of China.

2. 一般过去时 was/were + 过去分词

例如：These trees were planted the year before last.

3. 一般将来时 will/shall + be + 过去分词

例如：A sports meeting will be held next week in our school.

4. 现在进行时 am/is/are + being + 过去分词

例如：Your radio is being repaired now.

5. 过去进行时 was/were + being + 过去分词

When he got there, the problem was being discussed.

6. 现在完成时 have/has + been + 过去分词

His work has been finished.

Has his work been finished? Yes, it has. / No, it hasn’t.

7. 过去完成时 had + been + 过去分词

高三英语语法知识点归纳

一、不定式做主语：

1、不定式做主语一般表示具体的某次动作。===动名词doing表示习惯的，经常的动作。

e.g: To finish the building in a month is difficult.

To do such things is foolish.

To see is to believe. (对等)

注: 1).不定式作主语时,谓语用单数

2).当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。

it做形式主语，不定式放在谓语动词之后常用于下列结构中：

(1)It is/was +adj.+of sb. to do…

(2) It is +adj.+for sb.+to do…

It is easy / difficult / hard / foolish / unwise / right / wrong / unnecessary

(3) it is +a +名词+ to do...

It is a pity / a pleasure / a pleasant thing / one’s duty / an honor / a shame / a crime / no easy job… to do

It takes (sb.) some time / courage / patience …to do…

It requires courage / patience / hard work… to do…

注意: probable和possible均可作表语，但possible可以用不定式作真实主语，而probable不能用不定式作真实主语。

It is probable for him to come to the meeting.(错)

It is possible for him to come to the meeting.

It is possible / probable that he will come to the meeting.